Fuel distributing apparatus



Feb. 6, 1940. H. E. LIPPERT FUEL DISTRIBUTING APPARATUS 2 Sheets-Sheet 1 Filed March 26. 1956 Feb. 6, 1940.

H. E. LIPPERT FUEL DISTRIBUTING APPARATUS Filed March 26, 1956 2 Sheets-Sheet `2 Il 7]/ IIIIIIIIIIIIIIIIIIIIIIIIIII blu Il INVENTOR I Patented Feb. 6, 1940 UNiTEo STATE s] PATIENT? ori-ice This inventionrrelates to stoker structure, and

particularly to the fuel'jdistributing apparatusy and the construction of the discharge end of a stoker which delivers fuel to an opening in a wall of a rebox.

It is customary to provide a throat, forwardly extending branch or mouth/portion atfthe ischa'rge or delivery end of such av Stoker. In practice', a distributor heady lis provided'at the bottom of the mouth portion,` and a distributor plate is arranged forwardly of the distributor head to providefa surface over which the fuel is discharged into theV iirebox by blasts of pressure fluid from the distributor head. -'T.hev forward end of the distributor plate'extends into'the flrebcx and is exposed or subjected to a high-de-r grce of heat, causing this end ofv the plate' to f burn or wear out,` break away or becomey defective.' f l v One of the objects'of this invention is to provide a sectional distributor plate, the rear vend section of which is formed with the` mouth por'- tion of the Stoker, and the front end .section being mounted so that itv can readily and'easily be detached., removediand replaced without dismantling parts of the stokenfthereby reducing the time, trouble and expense'inA making a replacement. f; l f y Another object of theinvention 1s the proing a dstributor plate to a Stoker conduit 'member, whereby the plate can' be quickly and convenientiy assembled at the time of replacement The 4irnp:overr'ient' also contemplates thefprovision of fuel distributing appara'- 'tus composed of a number of separablecastings or vmembers which are simple in construction,

and, easily and cheaply manufactured as indre-` pendent units. .l

A further object of this invention -rs to provide a stoker delivery end casting or Stoker conduit member oi novel and improved construci tion. Stated more specically, the latter object consists inthe provision of inclined guide sur- 1" faces on the stolzery conduit member, on which ,cuide surfaces the distributor plate can ybe mounted. when being assembled, andvbe directed downwardly into its operative position.

Other' objects and advantages of vthe inven-v "JU ton and detail features of construction will apnear from a reading of the iollowing description taken in connection with `,the accompanying drawings, forming a part hereof, in which Fig. l is a vertical y.longitudinal section of the discharge end oraistcker. and a, portion ofthe yinvention applied thereto.

Fig. a

Fig.' 4 'is a sectional view 'numeral vision of new and improved means forv connectl' 'of 'the' firing opening. i, onezleg fixed to the backhead l@ in any desirable conduit member.

backhead of a locomotive rebox, showing the isy a horizontal sectional view taken on lined-2 of Fig;l.

"I ig. 3 isafverticaltransverse section taken on illustrates-1a slight `modificati0n.

- Referring 'particularly tov Figs.

ii) designates a locomotive irebox backheadorback wall having 'a firing opening ii therein. The backheadis formed yoian jouter sheet orplate l2 and an inner sheet i3. f The lowermarginal wall or edge vof the ringy openingis shownat 1li, and the side marginal walls thereof at l5 and i6. `While the invention vis vherein shown and describedfas. installed in a 1ocomotive; itfis to' be understood that its application is notlirnited thereto.

Ariser'conduit .H arranged parallel to the backhead ccmprises,^generally speakingan elevator'casing i8, `and 'a nozzle casting, hood or l iii' telescoped on the v lupper end of the elevator casing and communieating with the'riring opening. The Stoker constoker conduit i member similar toFig. 1 and Y l, 2 and 3, the

duit member i9 is formed of` diverging side walls 'Ziiand 2l, a curved rear wall `22 connecting the side walls, an' L-shaped 'flange 23 extending outwardly from each'of the side walls, a top wall 29,. and a bottom wall 3i.v kThe side walls 2U andZI,

thetop wall'ZS and the bottom wall 3| forma mouth portion 32 opening forwardly into the 'lower part Aof the firing opening Il. v y

' The riser conduit'is secured vat its upper end to the'backhead by an angle iron 33 at eachside These angle irons have manner, and the other'leg' rigidly attached to the adjacent l.shaped ange 23 on thestoker l A helical fuel transfer' screw 3Min the riser conduit delivers fuel to distributing' means which will now be described.

" A bar-shaped distributor head 35 arranged transversely of the mouth portion 32, is seated yon 4the bottom walli forward of the helical screwl 3d :and rearwardly of `the backhead Ii). The head 'i5' is provided with a plurality 'of chambers Si therein. Pipe linesBB corresponding in number to the number of chambers in the distributor head, serve to deliver fluid under pressure to the` chambers from any preferredv source. These pipe lines extend upwardly througi'r apertures 39 in the bottom wall 3l and are vsecured into the underside of the distributor head. Jet openings 4Q rare drilled in ahoribetween theouter and inner backhead sheets( I2 CJI communicate with the chambers 31. AnV upwardly projecting lug 4I is formed 0n each end of the distributor head, and the head is secured v to the side walls 20 and 2l of the mouth portion by bolts 43 which extend through these lugs.

A distributor plate, designated as a whole by the numeral 44, extends forwardly fromv the head through the ring opening I I adjacent to and spaced slightly above the lower marginal edge I5 of the iiring opening. vThe distributor plate 44 is yformed in two sections separable from each other. tion 45 is detachably connected to the stoker conduit member I9. The bottom wall 3l of the mouth portion constitutes the rear end section of the distributor plate. The topy surface of the front end plate section 45 lies inthesame horizontal plane as the top surface of rear endplate section or bottom wall 3| and forms a forward continuation thereof.y Likewise, downwardly sloping side channels 46 in the front end plate section l5y form forward continuations of simf` ilar channels 48 in the bottom wall 3|. ,Y

The mouth portion bottom'wall 3l extend from a point exteri'orly of the rebox to a point andl I3. A lip or tongue 5l) formed -on the forg ward end of bottom wall 3l is provided with an upwardly open substantially V-shaped groove 5I arrangedv tor receive va similarly shaped, flange 52 formed on the underside and at the rear end of the' front end plate'section 45, thereby providing an engagement between the front and rear end plate sections restraining downward movement of front end plate section 45. Longitudinal movement of the front .end plate section is pre.- vented by its own weight ink conjunction rwith the groove and flange engagement. This en gagement' lies approximately midway between the backhead sheets i2 and-I3. The tongue 50 forms a seat for the front end plate section 45 and extends transversely thereof between" the sidechannels 48.

The sidewalls 20 and 2I of the mouth portion v extend within the firing opening and the forward edges 53 and 54, respectively, of theseside wallsV terminate in a downwardly and forwardly inclined transverse plane. The side wall forward edges53 and 54 are contained in the same inclined plane as the rear side of V-shaped groove 5I, and they extend from a point exterior ofv the flrebox to a point within the firing opening II and from the top wall 29 to the bottom wall 3l. Outwardly projecting ears 55, 56 are formed on side walls 2li and 2l, respectively. 'I'he upper facesof these ears lie in the same inclined plane as the side wall forward edges 53 and 54. These facesy of ears 55 and 56 together with the forwardf edges of the mouth portion side walls provide on the stoker conduit member an inclined guide surface at each side of the mouth portion,

upon which guide surfaces the front end plate section 45 can be placed or mounted and man-` ually guided, directed, slid or moved downwardly and forwardly therealong into its operative po-` sition. The tongue 55 is disposed at the lower end of these inclined guide surfaces and pre- A front end distributor plate sec- .Y

the front vend plate section and at the rearv` thereof is'an upstanding inclined arm 58. Each of arms 5B has at its upper end a laterally projecting extension lug 59 turned outwardly and arranged to engage and be received by the hook v members on earsA 55 and. 55, thereby attaching the front end plate section 45 to the Stoker conduit member and preventing tilting of the front end plate section about the groove and'V4 flange engagement 5I,v 52. Lateral movement of the front endf'plate section is prevented by the arms 58 engaging the inner edges of L-shaped lugs 51.

To remove va wornfront' vend plate section it is only necessary to slide the same upwardly along the inclined guide and supporting surfaces until the lugs 59 on the plate section are out of engagement with .the hook shaped lugs 51 on the conduit member. The plate section can then be vtilted forward, and be withdrawn through the firing opening. In making the replacement, a, new plate section is held so that the lower' rear corner thereof will Contact the inclined guide surfaces at points slightly higher than when' in,`

its operative position, and so that the lugs 59 arev disposed above the slots formed bythe up,- wardly open hook shapedllugs 51. The plate section is'then loweredin contact with the guide surfaces, in such -mannerthat each lug 51 on the conduit member receives therespective lug 59 on the plate section, until flange 52 engages the tongue 50..v

rIfhe front end plate section" 45 disposedv.

tions 51, 59 are thus provided'where theyv cannot be effected by the high degree of heat in the rebox. Should the tongue 50 burn or break away due to theheat in` the rebox, the L-` shaped lugs 51 will then `vertically `support the front end plate section y-ina hinged relation to the stoker conduit member, the very slight vertical clearance or space between lugs 51 and 59 preventing vthe front-end plate section 45 from moving downwardly a distance sufcient to render the device inoperable.

Strengthening "ribs 60 between the front end plate section 45 and the arms 58 form forward continuations of the sidewalls 25 and 2|. These ribs prevent fuel discharged over the distributor plate 44'by pressure liuid blasts from jet open- Y ings 4I! from striking the -side marginal walls I5 and I6 of the firing opening.

In the modification shown in Fig. 4, a wearing sheet `6I is removablyattached to the top surface of bottom wall 62 as by means of ascrew 53. In all other respects the modified form is the samegas that describedk herein.

-I claim: f. 1. In a stoker,v a conduit member having a mouth portion provided withra downwardly andv forwardlyfinclinedsurface at each side thereof, a -distributor plate arranged to receive fuel yfor distribution over a re, saidy inclined surfaces being disposed to engage the rear edge of said distributor'plate and thereby direct it into its operative position,`means detachably connecting said distributor plate and said conduit member,

and means fordischarging fuel over said distribu-` tor plate;v 2. In a Stoker, the combination with va firebox provided with a ring opening, a conduitl member having a .mouth portion in communica- 'samaovty -tion with said firing openngsaid mouth-'por- 'tion` being provided with a downwardly and forwardly inclined surface at each 'side' thereof,

a distributor plate extending forwardlyffrcm be# neath said mouth portion and arranged to re- I ceive fuel for distribution over a nre, saidinclined surfaces extending from without toywithin f said iiring opening and being disposed to engage fuel over said distributor plate.

` the rear edge of said distributor plate and thereby direct it into `its operative position, means detachably` connecting said distributor plate-and said conduit member, and means for discharging 3. In a Stoker, 'a conduit member having a mouth portion provided 'with a downwardly and forwardly inclined surface at each side thereof,

a distributor plate arranged to receive fuel for distribution overa lire,l inclined arms, on said distributor plate arranged to slidably engage said inclined surfaces,r4 said` inclined surfaces being contained in a common plane and disposed to4 engage the rear edge'of said distributor plate and thereby direct it into its operative position, means detachably connecting said distributor plate and said conduit meinber and means for discharging fuel over said distributor piate.

4. In a stoker, la conduit member having a mouth portion provided with a downwardly and forwardly inclined surface at each side thereoi, and a distributor plate extending `forwardly from beneathv said mouth portion and arranged to receive fuel for distribution over a nre,` said inclined surfaces being disposed `to engage the 'rear edge of said distributor plate and thereby direct it into its operative position, said conduit member and said distributor plate each.being vprovidedr with an element of an interengaging means, one of said elements being provided on one of said inclined surfaces and varranged to engage the other of said elements, and' means for discharging fuel over said distributor plate. i

5. In a stokeigfa conduit member having a mouth portion provided with a downwardly and tributor plate.

forwardly inclined surface at eachvside` thereof, a distributor plate arranged to receive fuel for distribution over `al iflre, said inclined ysurfaces being disposed to direct said distributor plate into its operative position, an arm on each kside of said distributor plate arranged to slida'bly engage one of said inclined surfaces, a luglon each .oi said inclined surfaces disposed. to `engage the respective arm on said distributor plate, and means for discharging fuel over saidV dis-y 6. Ina Stoker, a conduit member yhaving a mouth portionv provided vwith.' an inclined surface at each side thereon, a distributor plate arranged to receive fuel for distribution over a re, said inclined surfaces extendingk from ythe top to the bottom of said mouth portion in ar downwardly andiorwardly direction-and being disposed to engage the rear edge of said distributor plate and thereby direct itinto its operative position, means on said inclined sur-faces Aar- `piate, said conduit memberl also having a downwardly and forwardly -inclined surface at each side of said mouth portion, `a front end distributor section Aforming with said bottom wall a distributor plate arranged to receive fuel -or distribution over a rejsaid inclined surfaces being" disposed to engage the rear edge oi said' l front. end distributor section and thereby directk it into its operative position, said iront end distributor section being provided at each side oi its rear end with an element of interengaging means detachably connecting said front end dise'I trlbutor section and said conduit member, an upwardly open hook shaped lug on each side o f said conduit member forming the other elements ci said interengaging means, and means for dis' l charging iuel over said distributor plate.

d. In a Stoker, a conduit member having a mouth portion provided with a bottom wall, a iront end distributor section forming with said bottom wall a distributor plate arranged to receive iuel ior distribution over a re, means for' directing said iront end distributor section into its operative position, said iront end distributor fsection'being provided on each side of itsrear endv with an interengaging element, an upwardlyopen hook shaped iug on each side of said conduit lmember forming the other interengagingl elements, each oi said lugs being arranged to receive the respective interengaging element on said front end distributor section upon down- Ward movement of the latter into its operative position, andA means for discharging fuel over said plate. l f

'9. In a stoke'r, a distributorl plate having'a horizontal top surface arranged to receive fuel for 'distribution over a re, a member at lthe delivery end ofthe Stoker provided with a spaced pair of guide surfaces disposed to engage the rear edge of said distributor plate and thereby direct it into its operative position, said guide surfaces extending above the horizontaltop surffaceof said distributor plate, anupstanding arm on said'distributorplate, means on said member arranged to engage said arm upon downward movement voi said distributor plateinto its op over said distributor'plate. I

i 1 HENRY E. LIPPER'I.

verative position, and means for discharging uel 

